Sometimes to make a nice ppt (good powerpoint) you need to submit a video on it, but when you use windows 7 as operating system is hard to edit video because there no movie maker. in my opinion movie maker is software that make edit video easy, there are any software like it but i think this is easiest. with simple tool, and simple operation make it easy to use.

With this tool you can crop a video, make simple video, use only sound without video and another simple think. just download it, i hope this is help you to make a nice ppt.